Weekly Extreme Killer Sudoku Competition for May 4 to May 10

Number 972, Extreme
by Crosswords Ltd. May puzzle packs Now Out!. Thanks for supporting our site.
All entries must be in by the end of Saturday, May 10 23:59 EST, USA

1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
12
7
 
 
21
 
20
 
 
 
8
 
17
 
 
14
 
 
7
21
 
 
9
 
11
 
 
 
 
17
 
 
28
23
13
 
10
 
 
 
 
 
 
3
 
17
 
 
 
17
 
 
17
8
6
 
 
 
 
15
 
 
 
22
 
 
12
 
 
11
 
11
17
 
 
 
 
11